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Texas Instruments TI-84 Plus Silver Edition Manual

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Chapter 1: Getting Started with the TI-84 Plus C Silver Edition 19
Multiple Entries on a Line
To enter two or more expressions or instructions on a line, separate them with colons (ƒ [:]). All
instructions are stored together in last entry (ENTRY).
Entering a Number in Scientific Notation
1. Enter the part of the number that precedes the exponent. This value can be an expression.
2. Press y D. â is pasted to the cursor location.
3. Enter the exponent, which can be one or two digits.
Note: If the exponent is negative, press Ì, and then enter the exponent.
When you enter a number in scientific notation, the TI-84 Plus C does not automatically display answers
in scientific or engineering notation. The mode settings and the size of the number determine the
display format.
Functions
A function returns a value. For example, ÷, L, +, ‡, and log( are the functions in the example on the
previous page. In general, the first letter of each function is lowercase. Most functions take at least one
argument, as indicated by an open parenthesis following the name. For example, sin( requires one
argument, sin(value).
Note: The Catalog Help contains syntax information for most of the functions in the catalog. To use
Catalog Help, select a menu item and then press Ã.
Instructions
An instruction initiates an action. For example, ClrDraw is an instruction that clears any drawn
elements from a graph. Instructions cannot be used in expressions. In general, the first letter of each
instruction name is uppercase. Some instructions take more than one argument, as indicated by an
open parenthesis at the end of the name. For example, on the TI-84 Plus C,
Circle( requires three
arguments, and has two optional arguments: Circle(X,Y,radius[,color, linestyle]).
Interrupting a Calculation
To interrupt a calculation or graph in progress, which is indicated by the busy indicator in the status bar,
press É.
When you interrupt a calculation, a menu is displayed.
• To return to the home screen, select 1:Quit.
• To go to the location of the interruption, select 2:Goto.
When you interrupt a graph, a partial graph is displayed.
• To return to the home screen, press ‘ or any non-graphing key.
• To restart graphing, press a graphing key or select a graphing instruction.
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